Endress+Hauser Proline t-mass 150 gas flowmeter

Endress+Hauser has released the Proline t-mass 150 thermal mass flowmeter for measuring gases such as compressed air, nitrogen, carbon dioxide and argon. The flowmeter measures mass flow, gas temperature, free air delivery and corrected volume - all without the need for pressure or temperature compensation.

With its high turndown of 100:1, the product can reliably measure small gas quantities at very low operating pressures, making it suitable for applications such as leak detection, process control, cost allocation, analysis of flow profiles and energy management. It has a 4-20 mA output with HART and a pulse/frequency switch output, allowing easy connection to control and energy management systems.

The stainless steel flowmeter operates in temperatures from -40 to 100ºC and pressures up to 580 psi, and measures mass flow up to 1.09 million kg/h with negligible pressure loss. It has CSAus and ex approvals for use in Class 1, Division 2 areas. The product is available in insertion, inline or hot-tap versions for installation in rectangular ducts or pipes from  0.5 to 60″ and can be supplied with welded flanges, lap-joint flanges or threaded connections.

The product has a Gas Engine - an embedded flow computer - that makes it possible for the flowmeter to change from one gas to another without the need for recalibration, and its thermal measuring principle requires no pressure or temperature compensation. Continuous self-diagnostics monitor the flowmeter for device and process errors.

Monitoring compressed air systems is a good application for the product. Through targeted measuring of airflow in a compressed air network (submetering), leaks can be identified and eliminated. The meter can also provide data for cost allocation of compressed air production to individual cost centres or buildings, and it can provide reliable consumption measurements for optimisation of the compressed air production processes.